<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>首页</title>
</head>
<body>

<span th:text="${session.user}" th:if="${not #strings.isEmpty(session.user)}">欢迎回来！！！</span><br />
</body>
</html>